It has now been confirmed that there were two people in the car - a woman and a child - and not three as previously reported by the British Transport Police.
A spokesperson said: “The car contained two occupants, a woman and a child. The child sustained serious injuries and has been airlifted to hospital in Sheffield. The driver, a woman, received minor injuries and has been taken to hospital in Doncaster.
More top news
Two people have been taken to hospital and three dogs seized after the animals attacked the pair at their home in Chesterfield.
Former Great Britain International Leon Pryce has announced his retirement from rugby league at the age of 35.
Advances in forensic science have helped detectives bring a serial rapist to justice for a horrific offence committed almost 3 decades ago